Need4S

Have you ever? Porsche claims the coolant is “permanent” and never needs changing. I’ve not seen any coolant last forever, though. All of them wear out their corrosion inhibitors at some point. So, has anyone changed out their coolant and what did they use?

rnl

at 24000...haven't bothered since. car now has 95000.
used Porsche branded pentosin (or something like that)...it was a pain to change as all air had to be purged